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Home Brew Forums > Home Brewing Beer > All Grain & Partial Mash Brewing > Reverse Osmosis Water for all grain brewing
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Old 05-11-2007, 01:42 AM   #11
Denny's Evil Concoctions
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But Soft does not mean acidic and Hard does not necessarily mean alkaline.

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Old 05-11-2007, 02:05 AM   #12
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That's true. I have very soft water, but the pH of my city water is 9.25. Hardness is determined by the levels of cations, i.e, calcium, and magnesium. Alkalinity is determined by the levels of anions, i.e., carbonates and bicarbonates. Total alkalinity is the buffering power of the water to a change in pH.

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